Segment Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Segment Information
Net sales	$ 1,983	$ 1,716	$ 5,328	$ 5,068
Operating Profit (Loss)	424	289	988	833
Other income (expense), net	(44)	(48)	(132)	(136)
Income from continuing operations before income taxes	380	241	856	697
North America
Segment Information
Net sales	1,599	1,374	4,337	4,033
International, principally Europe
Segment Information
Net sales	384	342	991	1,035
Plumbing Products
Segment Information
Net sales	1,141	1,006	2,964	2,958
Plumbing Products \| North America
Segment Information
Net sales	757	664	1,973	1,923
Plumbing Products \| International, principally Europe
Segment Information
Net sales	384	342	991	1,035
Decorative Architectural Products
Segment Information
Net sales	842	710	2,364	2,110
Decorative Architectural Products \| North America
Segment Information
Net sales	842	710	2,364	2,110
Decorative Architectural Products \| International, principally Europe
Segment Information
Net sales	0	0	0	0
Operating Segments
Segment Information
Net sales	1,983	1,716	5,328	5,068
Operating Profit (Loss)	450	313	1,058	910
Operating Segments \| Plumbing Products
Segment Information
Net sales	1,141	1,006	2,964	2,958
Operating Profit (Loss)	271	179	583	530
Operating Segments \| Decorative Architectural Products
Segment Information
Net sales	842	710	2,364	2,110
Operating Profit (Loss)	179	134	475	380
Geographic Areas
Segment Information
Net sales	1,983	1,716	5,328	5,068
Operating Profit (Loss)	450	313	1,058	910
Geographic Areas \| North America
Segment Information
Net sales	1,599	1,374	4,337	4,033
Operating Profit (Loss)	368	262	899	759
Geographic Areas \| International, principally Europe
Segment Information
Net sales	384	342	991	1,035
Operating Profit (Loss)	82	51	159	151
Corporate, Non-Segment
Segment Information
General corporate expense, net	$ (26)	$ (24)	$ (70)	$ (77)

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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